Food-chopper.



G. SGHOGK.

FOOD GHOPPBR.

APPLICATION FILED SEPT. 29, 1913.

Patented Mar. 2, 1915.

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- V-VUMOZ @wmm Schom HE NORRIS PETERS C0.. FHDTU'LITI'HOH WASHING TON D41..

G. SGHOCK.

FOOD CHOPPER.

APPLICATION FILED SEPT. 29, 1913.

Patented Mar. 2, 1915.

3 SHEETS-SHEET 2.

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THE NORRIS PETERS C0.. PHOTO-LHHOU VASHif-blunl D. C

C. SOHOGK.

FOOD CHOPPER.

APPLICATION FILED SEPT. 29, 1913.

Patented Mar. 2, 1915.

3 SHEETS-SHEET 3 awvwwtoz Q W ma .HE NORRIS PETERS 60., PHOTC-LITHO.,WASHINGTON. D. c.

CLARENCE SCHOCK, 0F MOUNT JOY, PENNSYLVANIA.

FOOD-CHOPPER.

trac ea.

To all whom it may concern Be it known that I, CLARENCE Scnocn, residingat Mount Joy, in the county of Lancaster and State of Pennsylvania, haveinvented certain new and useful Improvements in Food-Choppers, of whichthe following is a specification.

This invention relates to food choppers and has for its objects theproduction of a food chopper in which provisions are made againstincorrect assembling of the parts.

Food choppers in which my invention is particularly useful usuallycomprise a. standard or support having fastening means for securing thechopper to an edge of a table or shelf, a barrel and a hopper therefor,a rotary worm or forcer arranged to rotate in the barrel tocooperatewith ribs formed in the side of the same to partly disintegratethe food and to force it past cutters on one end of the barrel, asuitable operating handle for the worm, and cutters on the front end ofthe barrel, one of which is operated through the worm to chop the foodas it is forced through them. Such choppers are usually made to operateupon different kinds of foods, and interchangeable cutters are usuallyprovided for this purpose. The worm or forcer is assembled in the barreland with the cutters on the by servants, and the like, mechanically ignorant persons, who usually operate such devices.

' The invention provides means for fixedly securing the inner cutter tothe worm so that it may beheld stationary with respect to the barrel andfor holding the outer cutter in position on the worm so that it may berevolved with respect to the inner cutter to chop the food.

The invention also provides means for preventing the incorrectassembling of the outer cutter through the production of a retainingdevice for the inner cutter either integral with the forcer orseparately manufactured and securely attached thereto.

The invention is'useful in connectionwith any food chopper having bothrotary and stationary cutters, but is described as 'used Specificationof Letters Patent.

Patented Mar. 2, 1915.

Application filed September 29, 1913. Serial No. 792,315.

in combination with concavo-convex resilient reinforced cutter disks ofthe type described in my co-pending application, Serial No. 792,314,filed September 29, 1913.

The invention has also for an object the productionofa fastening devicefor disks which firmly secures them in operative contact in order thatthey may effectually perform their shearing operation.

With the above and other objects in view, the invention comprises a foodchopper having a worm and forcer of any desired construction and aretaining device for the inner cutter arranged to secure the innercutter to the worm so that it may not be readily removed therefrom, butin such manner that the worm may rotate relative thereto, so that suchinner cutter may be held stationary during the operation of the machine.

The invention also comprises a retaining device for the inner cutter andadditional means for securing the outer cutter in place. The. retainingdevice may be provided with different forms of locking elements forsecuring the outer disk in operative position with respect to the innerdisk and for associating it with the worm, and it is also provided withsuitable bearings for the disks, all as more fully hereinafter set forthand as claimed.

-In the accompanyingdrawings showing several forms of a specificembodiment of my invention, Figure 1 is a side elevation,

partly in section, of an assembled food another form of retainingdevice; Fig. 6.

is a front plan view of Fig. 5; Fig. 7 is a perspective view of theretaining device shown in Fig. '5; Fig. 8 is a longitudinal sectionthrough a worm and cutters and illustratesanother form of retainingdevice;

Fig. 9 is a front plan view of Fig. 8; Fig.

10 isa longitudinal section through a worm and cutters and illustrates adifferent form of'retaining device; Fig. 11 is a front; plan V chopperfor which the cutters shown in Fig.

13 are adapted; Fig. 15 is a perspective view of the retaining'deviceused. for the cutters in Fig. 13; and Fig. 16 is a front plan view of amodified form of yoke.

Referring to the drawings, reference numeral 1 indicates the usualstandard having the clamping jaws 2 and fastening screw 3 for securingthe chopper to the edge of a table. The barrel 4:, with its hopper 5 andworm or forcer 6, may be of the usual construction. The worm has a keyedend 7, over which a correspondingly slotted handle '8 fits, andthe'screw-threaded end 9 for the engages the face of the outer cutter.

I ferred to.

winged nut 10, which serves to adjust the outer and inner cutters withrespect to each other, as hereinafter pointed out. The outer cutters 11and inner cutters 12, shown in Figs. 1 to 12, inclusive, are preferablyof resilient metal having peripheral flanges which serve to reinforcethem. The flange of the inner cutter is provided with a lug 13,, and theflange of the outer cutter is provided with a lug 1 1, the lug on theinner cutter engaging a projection, such as 15, on the barrel of thechopper to prevent such inner cutter from rotating and the lug of theouter cutter engaging an arm 16 of an operating device connected to theworm. The combination of these disks with a food chopper is not claimedas a part of the present invention, but forms the subjectmatterof theapplication hereinbefore re- These disks are also provided with centralholes and annular bearing flanges, the flange 17 of the inner cutterha'vin g an external diameter less than the internal diameter of theflange 18 of the outer cutter, so that-the flange ofthe outer cutter mayrotate upon the flange of the inner cutter. The connection 19 extendingfrom the worm is provided with a recess 20 adapted to fit over acorresponding keyed portion 21 on the end of the worm and to beremovably secured in position through the nut 22, hereinafter described.This con nection is provided with several arms and in one form with aperipheral rim23, which The rim is provided with an extension 24;, whichengages the lugll of the outer cutter to rotate it as the connection isrevolved by the worm. This connection may be made without the rim, inwhich event one of the arms may bemade long enough toengage the lug 14.This connection is provided withthe recessed portion 25. adapted .to fitover the flange 18 of the outer cutter and thus bear directly againstthe face of such cutter and to serve as a housing. I do not claim hereinthe construction of these hearing flanges and the connection, as theyform the subject-matter of my co-pending application filed May 21st,1912, Serial No. 698,708, renewed July 7th, 1913, Serial No. 777,962patented February 2 1, 1914:, No. 1,088,458.

In Figs. 1, 2, 3 and et there is shown one form of retaining device forthe stationary cutter. It comprises a screw-threaded extension 26adapted to be secured in a corresponding hole in the end face of theworm and a separately formed bearing 27, upon which the inner diskrests. The extension 26 is provided with the flattened portions 21 forengagement with the connecting device, as described, and has a diameterthrough its greatest width slightly greater than the diameter of thebearing 27 and the internal diameter of the flange 17 of the innercutter. The bearing 27 has a diameter, so that it accommodates thehearing flange 17 of the inner cutter. Thus, the

extension 26 serves to retain the inner cutter 12 upon its bearing 27when the retaining device has been secured to the worm. The internaldiameter of the flange 18 of the outer cutter corresponds to thegreatest diameter of the extension at 21, so that such outer cutter maybe placed in position with its flange bearing on the flange of the innercutter. When the cutters have been assembled as thus indicated and whenthe connectiton 19 has been placed in position, the nut 22 is turnedcrosswise of the slot 20 of the connection and the worm is placed in thebarrel and secured therein by the winged nut 10 at the opposite end, thenut serving to adjust the cutters with respect to each other.

In Figs. 5, 6 and 7 I have shown a slightly modified construction inwhich the bearing 27 is formed integral with the retaining device. Thisis a very satisfactory construction, but slightly more expensive thanthe construction shown in Figs. 1 to 4 in that more care and time arerequired for the formation of the screw-threads on the extension and forthe shaping of the flattened portion of the extension than is requiredin the construction of the device shown in Fig. 4-. In the devicepreviously described the hearing may be stamped. the extension may becast and readily finished, while the screw may be easily formed.

In Figs. 8 and 9 I have shown still another form of retaining device,and this is the preferred embodiment because of sim plicitv ofconstruction. The extension 26 in this instance is cast integral withthe worm and is provided with a groove 29 inwhich a spring wire 30,preferably rectanguless than the internal diameter of the flange of theouter cutter, so that the outer cutter may be located'upon the innerone.

In Figs. 10, 11 and 12 there is shown a different form of fasteningdevice for the outer cutter. The retaining device may be made in any ofthe forms previously described, but for the sake of illustrationl haveshown it like that in the form of Fig.

7 except that in the place of the nut 22 there is provided a head 31spaced away from the extension 26 and forming a latch with the catch Thecatch may be pivoted to the yoke at 33.

In the choppers described the cutters may be adjusted through the nut atthe rear end of the worm, but, if desired, the outer cutter may beadjusted relative tothe inner cutter through means which secures it inposition. In Figs. 13, 1st and 15 I have shown the invention as appliedto choppers of the split hopper type and in connection with differentstyle cutters than those shown in the previously described views. Thebarrel consists of two halves, 34 and 35, pivoted at 36, one of which isprovided with the bail 37 and the other with the stop lug 38, so thatthe halves may be suitably joined. Each half is grooved at its forwardend to accommodate an inner disk 36, and in the form of such chopper nowto be found upon the market such inner disk is provided with an inwardlyextending lug 37, which is adapted to seat in a corresponding recessformed when the halves of the chopper are assem bled to preventincorrect positioning of the inner disk. In the present invention theformation of this lug 37 may be dispensed with and thus the cost ofmanufacture of such choppers considerably reduced. The retaining devicein this modification of the invention comprises the extension 26 havingthe bearing 27, either formed integral therewith or asis shown in Fig. 4of a separate piece of metal and having the forward threaded extremity38. The usual nut 39 serves to secure the outer rotary disk 40 inposition on the flattened portion 21 of the extension 26, so that whenthe worm rotates this outer disk rotates therewith relative to the innerdisk 36, which is held stationary in the grooves of the hopper.

The chopper is placed-upon the market with several outer cutter diskshaving different sized openings through which the food is forced. Theedges of these openings form the knives. If for any reason it is desiredto remove the inner cutter, this may be accomplished throughremoval ofthe retaining device by the use of suitable tools, but

ordinarily it is not necessary to remove this inner cutter and Ipreferably secure the retaining device to the worm permanently.

V'Vhat I claim is 1. In a food chopper, a rotary forcer, and an innerand outer cutter carried thereby, means for securing the inner cutterloosely on the forcer whereby the latter may rotate with respect to suchinner cutter, and additional means for holding the outer cutter on theforcer to rotate therewith.-

2. In a food chopper having a rotary forcer and o erating meanstherefor, the combination with an outer cutter adapted to rotate withthe forcer and an inner cutter adapted to be held stationary withrespect thereto, of a retaining device for the inner stationary cutterpermanently associating it with the forcer.

3. In a food chopper having a rotary forcer and operating meanstherefor, the combination with an outer cutter adapted to rotate withthe forcer and an inner cutter adapted to be held stationary withrespect thereto, of'a retaining device for the inner stationary cutterpermanently associating it with the forcer and affording a rotativebearing between the forcer and the inner stationary cutter.

4. In a food chopper having a rotary forcer and operating meanstherefor, the combination with an outer cutter adapted to rotate withthe forcer and an inner cutter adapted to be held stationary withrespect thereto, of a retaining device for the inner stationary cutterpermanently associating it with the forcer and provided with means forlocking the outer rotary cutter to said forcer.

5. In a food chopper having a barrel, a rotary forcer and operatingmeans therefor, the combination with an outer cutter adapted to rotatewith the forcer and an inner cut ter adapted to be locked to the barrel,of a retaining device for the inner cutter permanently associating itwith the forcer.

6. In a food chopper having a rotary forcer and operating meanstherefor, the combination with an outer rotary cutter and an innerstationary cutter, of means for holding the cutters on the forcer, saidmeans comprising an attaching device for the inner cutter carried by theforcer, and a separate attaching device for the outer cutter.

7. In a food chopper having a forcer rotatable therein and operatingmeans therefor, the combination with cutters having holes for fittingthem over the forcer of a retaining device having a bearing for onecutter and a portion of larger dimension than the hole in said cutterimmediately beyond said bearing to secure that cutter per manently onthe bearing, and having also diameter as the hole of the outer cutter,

whe y h c t r may he place inst nes tien th t e first cu te a d m ansfor ring the s c ndtcutter to the inner to rotate therewith. r

8- In f sh pper, rotary r er mprising a permanentlyassociated looselymounted cutter which may be held stationary as the 'forcer rotates, andmeans for securing said forcer to the cutter comprising an extensionintegral with the forcer having a portion serving as a bearing betweenit and said cutter, and having another portion im mediately beyond saidbearing grooved for the reception and retention of means for holdingsaid cutter on said bearing, and holding means in said groove.

9; In a food chopper, a rotary forcer comprising a permanentlyassociated loosely mounted cutter which may be held stationary as theforcer rotates, and means for securing saidforcer to the cuttercomprising an extension integral with the forcer, having a portionserving as a bearing between it and said cutter, and having anotherportion immediately beyond said bearing grooved for the reception andretention of means for holding said cutter on said bearing, and asplitspring in said groove.

10. In a food chopper, a rotary forcer comprising a permanentlyassociated loosely mounted cutter which may be held stationary as theforcer rotates, and means for securing said forcer to the cuttercomprising an extension integral with the forcer having a portionserving as a bearing between it and said cutter andhaving anotherportion (epics of this patent may be obtained for immediately beyondsaid bearing-grooved for the reception and retention of means forholding said cutter on said bearing, and a spring in said groove havinga' flat outwardly extending face.

11. In a food chopper, stationary and rotary cutters, a rotary forcerhaving an extension for the cutters, said extension comprising a bearingportion for the stationary cutter and means to hold said cutter looselyon said bearing, said means comprising an element forming a part of saidextension beyond said bearing and having a diameter greater than thediameter 01" said bearing and engaging the rotary cutter.

12. In a food chopper, a rotary forcer having an extension for cutters,said extension comprising a bearing portion for a stationary cutter andmeans to hold said cutter loosely on said bearing, said means comprisinga spring attached to said extension beyond said bearing and having adiameter greater than thediameter of said bearing.

13. In a food chopper a rotary forcer, a loosely mounted cutter adaptedto be held stationary as the forcer rotates, and means for securing suchcutter permanently associated with the forcer when the latter is removedfrom the chopper.

In testimony whereof, I have hereunto set my hand in the presence ofwitnesses.

CLARENCE SCHOCK.

Witnesses:

H. M. STAUFFER, CHRIST WALTERS.

five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

